Three women and a man are trapped in an apartment. Freedom is theirs for the taking a long as they abide by just one condition: the man must have sex with at least one woman.

Each hour participant does have conflicting personalities. Since the stakes aren't that high to begin with, they're just absurd, they don't even entertain the one condition. That us until they realize that they're on some sort of a reality show and they start getting instructions that raise the stakes.
The film, in a way, was in the vein of Bunuel's Exterminating Angel.

So what was the intended genre?
Psychological horror, intellectual play?
if you have an one room film, then all the tension has to come from the dialogue.
Phonebooth is one of the recent movie based on the one room concept.
but despite the dialogue, the initial setup has to make sense.
having sex to get free does not sound like a good setup for me.
Why can't they just have sex and get freed?
That is why I wanted to know whether each participant had been given conflicting tasks.

OP here. This has all been extremely helpful! Thanks! The logline definitely does have some gaping holes and all your feedback has been really helpful in taking this forward. Thanks!
The original intent was basically to write a one room film that could take on the ideas of society and patriarchy. Will work on this some more.